2002660209021 has 8 divisors (see below), whose sum is σ = 2693843821440. Its totient is φ = 1323291701312.

The previous prime is 2002660208971. The next prime is 2002660209049. The reversal of 2002660209021 is 1209020662002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002660209021 - 2²¹ = 2002658111869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002660209021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002660209071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2953775781 + ... + 2953776458.

It is an arithmetic number, because the mean of its divisors is an integer number (336730477680).

Almost surely, 2^{2002660209021} is an apocalyptic number.

It is an amenable number.

2002660209021 is a deficient number, since it is larger than the sum of its proper divisors (691183612419).

2002660209021 is a wasteful number, since it uses less digits than its factorization.

2002660209021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5907552355.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 2002660209021 in words is "two trillion, two billion, six hundred sixty million, two hundred nine thousand, twenty-one".